小编Sid*_*pta的帖子

我一直在尝试运行一个简单的矢量代码,我在互联网上看到,以了解矢量的工作原理.

#include <iostream>
#include <vector>
using namespace std;

int main(int argc, char** argv) {
    /*  Initialize vector of 10 copies of the integer 5 */

    vector<int> vectorOne(10,5);

    /*  run through the vector and display each element, if possible */

    for (long index=0; index<20; ++index) {
        try {
            cout << "Element " << index << ": " << vectorOne.at(index) << endl;
        }
        catch (exception& e) {
            cout << "Element " << index << ": index exceeds vector dimensions." << endl;
        } …